Custom Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 120×25 mm, thickness 3 mm 📦#1984

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3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀75 mm and a rectangular section with internal dimensions 120×25 mm. The shell thickness is 3 mm and the total length is 150 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Generation date: 2025-09-25
3D Model Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 120×25 mm, thickness 3 mm

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Free
  • round-to-rectangular-adapter-d_model1984-nb0_dd{id}.stl : 1.9 Mo
STL Mesh quality : Linear deflection 0.0005 Angular deflection 0.05
No compliance warranty No compliance warranty
(Internal and private use, non-commercial – no distribution – no derivatives)
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Values for this model

This model was generated by the Round to rectangular adapter template, with the following values:
Parameter Value
#1 cylinder outer diameter 75 mm (≃2 15/16 in)
#2 cylinder inlet length 50 mm (≃1.97 in)
#3 rectangle internal length 120 mm (≃4.72 in)
#4 rectangle internal height 25 mm (≃0.98 in)
#5 rectangle inlet length 60 mm (≃2 3/8 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 150 mm (≃5.91 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
Metadata Value
Cylinder internal diameter 69 mm (≃2.72 in)
illustration of the parameters
Parameter overview

  • If the chamfer option on the ends is enabled, the chamfer length is equal to half the thickness.
  • The stop at the bottom of the rectangular section has a width equal to half the thickness.

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 cylinder outer diameter diaC
#2 cylinder inlet length lentC
#3 rectangle internal length lenIR
#4 rectangle internal height heiIR
#5 rectangle inlet length lentR
#6 offset Z ofsZ
#7 offset Y ofsY
#8 total length lenT
#9 thickness thi
#10 chamfer cha

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Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 50 mm
rectangle internal length 125 mm
rectangle internal height 22 mm
rectangle inlet length 50 mm
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Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 50 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 80×80 mm, thickness 3 mm (📦 #4602)

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Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 50 mm
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rectangle internal height 80 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀108 mm to 152×82 mm, thickness 3 mm (📦 #4106)

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Parameter Value Unit
cylinder outer diameter 108 mm
cylinder inlet length 40 mm
rectangle internal length 152 mm
rectangle internal height 82 mm
rectangle inlet length 50 mm
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offset Y 0 mm
total length 120 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀40 mm to 77×33 mm, thickness 3 mm (📦 #2199)

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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀108 mm to 154×84 mm, thickness 3 mm (📦 #4105)

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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL 3D file ⌀68 mm to 140×20 mm, thickness 4 mm (📦 #6812)

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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀40 mm to 68×24 mm, thickness 3 mm (📦 #2198)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 100×50 mm, thickness 2 mm + offset (📦 #1858)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀60 mm to 100×50 mm, thickness 2 mm + offset
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀105 mm to 80×80 mm, thickness 2 mm (📦 #3740)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀105 mm to 80×80 mm, thickness 2 mm
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀105 mm and a rectangular section with internal dimensions 80×80 mm. The shell thickness is 2 mm and the overall length is 150 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
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cylinder inlet length 50 mm
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1 object(s) - format STL
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Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
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1 object(s) - format STL
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Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀101.6 mm and a rectangular section with internal dimensions 152.4×57 mm. The wall thickness is 3 mm and the total length is 152.4 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 101.6 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 200×40 mm, thickness 3 mm + offset (📦 #7431)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 200×40 mm, thickness 3 mm + offset
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 200×40 mm. The shell thickness is 3 mm and the overall length is 150 mm. The adapter has an offset of 3 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 100 mm
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Round-to-Rectangular Tube Adapter STL file ⌀62 mm to 110×54 mm, thickness 3 mm (📦 #2840)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀62 mm to 110×54 mm, thickness 3 mm
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀62 mm and a rectangular section with internal dimensions 110×54 mm. The wall thickness is 3 mm and the overall length is 80 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 62 mm
cylinder inlet length 30 mm
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Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 60×60 mm, thickness 3 mm (📦 #1485)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 60×60 mm, thickness 3 mm
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 60×60 mm. The shell thickness is 3 mm and the overall length is 100 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 30 mm
rectangle internal length 60 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 60×5 mm, thickness 3 mm (📦 #9030)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 60×5 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀50 mm and a rectangular section with internal dimensions 60×5 mm. The wall thickness is 3 mm and the total length is 130 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 60 mm
rectangle internal length 60 mm
rectangle internal height 5 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 130 mm
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Round-to-Rectangular Tube Adapter STL file ⌀50 mm to 152×45 mm, thickness 3 mm (📦 #3347)

1 object(s) - format STL
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Parameter Value Unit
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cylinder inlet length 50 mm
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Parameter Value Unit
cylinder outer diameter 99.7 mm
cylinder inlet length 35 mm
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rectangle inlet length 55 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀30 mm to 100×50 mm, thickness 3 mm (📦 #5085)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀30 mm to 100×50 mm, thickness 3 mm
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀30 mm and a rectangular section with internal dimensions 100×50 mm. The wall thickness is 3 mm and the total length is 200 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 30 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀107 mm to 110×54 mm, thickness 3 mm (📦 #2839)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀107 mm to 110×54 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀107 mm and a rectangular section with internal dimensions 110×54 mm. The wall thickness is 3 mm and the total length is 80 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 107 mm
cylinder inlet length 30 mm
rectangle internal length 110 mm
rectangle internal height 54 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀79 mm to 121×56 mm, thickness 4 mm + offset (📦 #7535)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀79 mm to 121×56 mm, thickness 4 mm + offset
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀79 mm and a rectangular section with internal dimensions 121×56 mm. The shell thickness is 4 mm and the overall length is 150 mm. The adapter has an offset of 17.5 mm along the Z axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 79 mm
cylinder inlet length 35 mm
rectangle internal length 121 mm
rectangle internal height 56 mm
rectangle inlet length 35 mm
offset Z 17.5 mm
offset Y 0 mm
total length 150 mm
thickness 4 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀48.5 mm to 80×80 mm, thickness 3 mm (📦 #6760)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀48.5 mm to 80×80 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀48.5 mm and a rectangular section with internal dimensions 80×80 mm. The shell thickness is 3 mm and the overall length is 90 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 48.5 mm
cylinder inlet length 25 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 90 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀70 mm to 100×30 mm, thickness 3 mm (📦 #4774)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀70 mm to 100×30 mm, thickness 3 mm
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀70 mm and a rectangular section with inner dimensions 100×30 mm. The wall thickness is 3 mm and the overall length is 155 mm. A chamfer is applied on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 70 mm
cylinder inlet length 25 mm
rectangle internal length 100 mm
rectangle internal height 30 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 155 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 106×49 mm, thickness 2 mm (📦 #6737)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀80 mm to 106×49 mm, thickness 2 mm
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 106×49 mm. The wall thickness is 2 mm and the total length is 90 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 30 mm
rectangle internal length 106 mm
rectangle internal height 49 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 90 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀99.5 mm to 170×100 mm, thickness 3 mm (📦 #1692)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀99.5 mm to 170×100 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀99.5 mm and a rectangular section with inner dimensions 170×100 mm. The wall thickness is 3 mm and the total length is 180 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 99.5 mm
cylinder inlet length 30 mm
rectangle internal length 170 mm
rectangle internal height 100 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 180 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 60×15 mm, thickness 2 mm + offset (📦 #7942)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀75 mm to 60×15 mm, thickness 2 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀75 mm and a rectangular section with internal dimensions 60×15 mm. The wall thickness is 2 mm and the overall length is 120 mm. The adapter has an offset of 17.5 mm along the Z axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 40 mm
rectangle internal length 60 mm
rectangle internal height 15 mm
rectangle inlet length 30 mm
offset Z 17.5 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀35 mm to 84.9×35 mm, thickness 3 mm (📦 #6212)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀35 mm to 84.9×35 mm, thickness 3 mm
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀35 mm and a rectangular section with inner dimensions 84.9×35 mm. The wall thickness is 3 mm and the overall length is 100 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 35 mm
cylinder inlet length 25 mm
rectangle internal length 84.9 mm
rectangle internal height 35 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer chamfers on ...